US7160848B2 - Polymers and laundry detergent compositions containing them - Google Patents
Polymers and laundry detergent compositions containing them Download PDFInfo
- Publication number
- US7160848B2 US7160848B2 US10/734,756 US73475603A US7160848B2 US 7160848 B2 US7160848 B2 US 7160848B2 US 73475603 A US73475603 A US 73475603A US 7160848 B2 US7160848 B2 US 7160848B2
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- US
- United States
- Prior art keywords
- detergent composition
- polymer
- vinyl pyrrolidone
- vinyl
- detergency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related, expires
Links
- 0 [2*]C([3*])C Chemical compound [2*]C([3*])C 0.000 description 2
- WHNWPMSKXPGLAX-UHFFFAOYSA-N C=CN1CCCC1=O Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- IGBZOHMCHDADGY-UHFFFAOYSA-N C=COC(=O)C(CC)CCCC Chemical compound C=COC(=O)C(CC)CCCC IGBZOHMCHDADGY-UHFFFAOYSA-N 0.000 description 1
- MQIVAPKTTFLNKQ-UHFFFAOYSA-N CCCCC(CC)C(=O)OC(CC)CC(CC)N1CCCC1=O Chemical compound CCCCC(CC)C(=O)OC(CC)CC(CC)N1CCCC1=O MQIVAPKTTFLNKQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0036—Soil deposition preventing compositions; Antiredeposition agents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
- C11D3/3776—Heterocyclic compounds, e.g. lactam
Definitions
- the present invention relates to laundry detergent compositions containing certain vinyl pyrrolidone copolymers.
- the compositions exhibit improved detergency on oily and clay soils and reduced soil redeposition during the wash.
- Polyvinyl pyrrolidone (PVP) and some related polymers are known ingredients of laundry detergent compositions, providing the benefit of reduced dye transfer between fabrics in a mixed load.
- Laundry detergent compositions containing PVP as a dye transfer inhibitor are disclosed, for example, in WO 92 18597A and WO 95 27028A (Procter & Gamble).
- GB 1 354 498 discloses laundry detergent compositions containing vinyl pyrrolidone/vinyl acetate (PVP/VA) random copolymers as antiredeposition agents. PVP itself is stated to be ineffective.
- the present invention provides a laundry detergent composition
- a laundry detergent composition comprising an organic surfactant, and a hydrophobically modified vinyl pyrrolidone polymer which is a copolymer having a vinyl pyrrolidone backbone and pendant hydrophobic side chains comprising alkyl chains containing from 4 to 20 carbon atoms, the polymer being present in an amount effective to improve detergency and/or antiredeposition.
- the invention provides the use of a hydrophobically modified vinyl pyrrolidone polymer to improve the detergency and/or antiredeposition of a laundry detergent composition.
- the polymer used in the detergent compositions of the invention is a polyvinyl pyrrolidone modified by the inclusion of hydrophobic units as pendant side chains.
- the polymer is a copolymer of vinyl pyrrolidone (VP), providing the polymer backbone, and a hydrophobic monomer.
- the hydrophobic side chains preferably comprise alkyl chains containing from 4 to 20 carbon atoms.
- the polymer is an alkylated vinyl pyrrolidone polymer wherein the alkyl chains contain from 4 to 20 carbon atoms.
- the hydrophobic side chains are derived from a hydrophobic comonomer which is an olefin containing from 4 to 20 carbon atoms.
- the polymer contains from 10 to 90 mole % of vinyl pyrrolidone (VP) units and from 10 to 90 mole % of hydrophobic comonomer units.
- VP vinyl pyrrolidone
- Suitable polymers are commercially available from International Specialty Products (ISP) as the Ganex (Trade Mark), Antaron (Trade Mark) and Agrimer (Trade Mark) series. They may be prepared by chemical modification of PVP with long-chain alpha-olefins. Examples are shown in the Table below.
- the hydrophobically modified vinyl pyrrolidone polymer has pendant hydrophobic side chains which are alkyl chains having from 4 to 20 carbon atoms linked to the vinyl pyrrolidone backbone by an ester linkage.
- the hydrophobic monomer precursor of the side chains is preferably a vinyl ester of the general formula I: R 1 —CO—O—CH ⁇ CH 2 (I) wherein R 1 is a linear or branched alkyl group having from 4 to 16 carbon atoms.
- R 1 is preferably a linear or branched alkyl group having from 6 to 10 carbon atoms.
- R 1 is a group of the formula II
- R 2 is a linear alkyl group having from 2 to 8 carbon atoms and R 3 is a methyl or ethyl group.
- hydrophobic comonomer of the formula I is vinyl 2-ethylhexanoate:
- the polymer preferably contains from 90 to 99.5 wt % of vinyl pyrrolidone monomer units and from 0.5 to 10 wt % of vinyl 2-ethyl hexanoate monomer units.
- Copolymers of vinyl pyrrolidone and vinyl 2-ethylhexanoate have the general formula III
- These polymers may be prepared by free radical polymerisation.
- the polymer is present in an amount sufficient to enhance detergency and/or antiredeposition.
- the polymer is present in an amount of from from 0.5 to 5 wt %, preferably from 1 to 4 wt %.
- the detergent composition may suitably comprise:
- the pH of the detergent composition is suitably in the range of from 7.0 to 11.0, preferably 7.5 to 10.5. During the wash in dilute form the pH of the detergent composition is from 7 to 11, preferably from 8.0 to 10.5.
- compositions of the invention may contain any organic surfactants (detergent-active compounds) suitable for incorporation into laundry detergent compositions.
- Detergent-active compounds may be chosen from soap and non-soap anionic, cationic, nonionic, amphoteric and zwitterionic detergent-active compounds, and mixtures thereof.
- Many suitable detergent-active compounds are available and are fully described in the literature, for example, in “Surface-Active Agents and Detergents”, Volumes I and II, by Schwartz, Perry and Berch.
- the preferred detergent-active compounds that can be used are soaps and synthetic non-soap anionic and nonionic compounds.
- the total amount of surfactant present is suitably within the range of from 5 to 60 wt %, preferably from 5 to 40 wt %.
- Anionic surfactants are well-known to those skilled in the art. Examples include alkylbenzene sulphonates, particularly linear alkylbenzene sulphonaites having an alkyl chain length of C 8 –C 15 ; primary and secondary alkylsulphates, particularly C 8 –C 20 primary alkyl sulphates; alkyl ether sulphates; olefin sulphonates; alkyl xylene sulphonates; dialkyl sulphosuccinates; and fatty acid ester sulphonates.
- Sodium salts are generally preferred.
- Nonionic surfactants that may be used include the primary and secondary alcohol ethoxylates, especially the C 8 –C 20 aliphatic alcohols ethoxylated with an average of from 1 to 20 moles of ethylene oxide per mole of alcohol, and more especially the C 10 –C 15 primary and secondary aliphatic alcohols ethoxylated with an average of from 1 to 10 moles of ethylene oxide per mole of alcohol.
- Non-ethoxylated nonionic surfactants include alkylpolyglycosides, glycerol monoethers, and polyhydroxyamides (glucamide).
- Cationic surfactants that may be used include quaternary ammonium salts of the general formula R 1 R 2 R 3 R 4 N + X ⁇ wherein the R groups are long or short hydrocarbyl chains, typically alkyl, hydroxyalkyl or ethoxylated alkyl groups, and X is a solubilising anion (for example, compounds in which R 1 is a C 8 –C 22 alkyl group, preferably a C 8 –C 10 or C 12 –C 14 alkyl group, R 2 is a methyl group, and R 3 and R 4 , which may be the same or different, are methyl or hydroxyethyl groups); and cationic esters (for example, choline esters).
- R 1 is a C 8 –C 22 alkyl group, preferably a C 8 –C 10 or C 12 –C 14 alkyl group
- R 2 is a methyl group
- R 3 and R 4 which may be the same or different, are methyl or
- the composition comprises a sulphonate anionic surfactant.
- the sulphonate anionic surfactant comprises linear alkylbenzene sulphonate (LAS).
- the compositions contains from 3 to 30 wt %, more preferably from 10 to 25 wt %, of LAS.
- the detergent compositions of the invention also contain one or more detergency builders.
- the total amount of detergency builder in the compositions may suitably range from 5 to 80 wt %, preferably from 10 to 60 wt %.
- Preferred builders are alkali metal aluminosilicates, more especially crystalline alkali metal aluminosilicates (zeolites), preferably in sodium salt form.
- zeolites crystalline alkali metal aluminosilicates
- Zeolite builders may suitably be present in a total amount of from 5 to 60 wt %, preferably from 10 to 50 wt %.
- the zeolites may be supplemented by other inorganic builders, for example, amorphous aluminosilicates, or layered silicates such as SKS-6 ex Clariant.
- the zeolites may be supplemented by organic builders, for example, polycarboxylate polymers such as polyacrylates and acrylic/maleic copolymers; monomeric polycarboxylates such as citrates, gluconates, oxydisuccinates, glycerol mono-, di- and trisuccinates, carboxymethyloxysuccinates, carboxymethyloxymalonates, dipicolinates, hydroxyethyliminodiacetates, alkyl- and alkenylmalonates and succinates; and sulphonated fatty acid salts.
- polycarboxylate polymers such as polyacrylates and acrylic/maleic copolymers
- monomeric polycarboxylates such as citrates, gluconates, oxydisuccinates, glycerol mono-, di- and trisuccinates, carboxymethyloxysuccinates, carboxymethyloxymalonates, dipicolinates, hydroxyethyliminodiacetates, alkyl- and
- compositions of the invention may contain phosphate builders, for example, sodium tripolyphosphate.
- organic builders are citrates, suitably used in amounts of from 1 to 30 wt %, preferably from 2 to 15 wt %; and acrylic polymers, more especially acrylic/maleic copolymers, suitably used in amounts of from 0.5 to 15 wt %, preferably from 1 to 10 wt %.
- Builders both inorganic and organic, are preferably present in alkali metal salt, especially sodium salt, form.
- the detergency builder which is present in an amount of from 5 to 80 wt %, preferably from 10 to 60 wt %, is selected from sodium tripolyphosphate, zeolites, sodium carbonate and mixtures thereof.
- Detergent compositions according to the invention may also suitably contain a bleach system.
- a bleach system Preferably this will include a peroxy bleach compound, for example, an inorganic persalt or an organic peroxyacid, capable of yielding hydrogen peroxide in aqueous solution.
- Preferred inorganic persalts are sodium perborate monohydrate and tetrahydrate, and sodium percarbonate, the latter being especially preferred.
- the sodium percarbonate may have a protective coating against destabilisation by moisture.
- the peroxy bleach compound is suitably present in an amount of from 5 to 35 wt %, preferably from 10 to 25 wt %.
- the peroxy bleach compound may be used in conjunction with a bleach activator (bleach precursor) to improve bleaching action at low wash temperatures.
- the bleach precursor is suitably present in an amount of from 1 to 8 wt %, preferably from 2 to 5 wt %.
- Preferred bleach precursors are peroxycarboxylic acid precursors, more especially peracetic acid precursors and peroxybenzoic acid precursors; and peroxycarbonic acid precursors.
- An especially preferred bleach precursor suitable for use in the present invention is N,N,N′,N′-tetracetyl ethylenediamine (TAED).
- a bleach stabiliser may also be present.
- Suitable bleach stabilisers include ethylenediamine tetraacetate (EDTA), diethylenetriamine pentaacetate (DTPA), ethylenediamine disuccinate (EDDS), and the polyphosphonates such as the Dequests (Trade Mark), ethylenediamine tetramethylene phosphonate (EDTMP) and diethylenetriamine pentamethylene phosphate (DETPMP).
- compositions of the invention may contain alkali metal, preferably sodium, carbonate, in order to increase detergency and ease processing.
- alkali metal preferably sodium, carbonate
- Sodium carbonate may suitably be present in amounts ranging from 1 to 60 wt %, preferably from 2 to 40 wt %.
- sodium silicate may also be present.
- the amount of sodium silicate may suitably range from 0.1 to 5 wt %.
- Sodium silicate, as previously indicated, is preferably introduced via the second base granule.
- Powder flow may be improved by the incorporation of a small amount of a powder structurant.
- powder structurants include, for example, fatty acids (or fatty acid soaps), sugars, acrylate or acrylate/maleate polymers, sodium silicate, and dicarboxylic acids (for example, Sokalan (Trade Mark) DCS ex BASF).
- fatty acids or fatty acid soaps
- sugars acrylate or acrylate/maleate polymers
- sodium silicate for example, Sokalan (Trade Mark) DCS ex BASF
- dicarboxylic acids for example, Sokalan (Trade Mark) DCS ex BASF.
- One preferred powder structurant is fatty acid soap, suitably present in an amount of from 1 to 5 wt %.
- antiredeposition agents such as cellulosic polymers; soil release agents; anti-dye-transfer agents; fluorescers; inorganic salts such as sodium sulphate; enzymes (proteases, lipases, amylases, cellulases); dyes; coloured speckles; perfumes; and fabric conditioning compounds. This list is not intended to be exhaustive.
- compositions of the invention may be of any suitable physical form, for example, particulates (powders, granules, tablets), liquids, pastes, gels or bars.
- the detergent composition is in particulate form.
- Powders of low to moderate bulk density may be prepared by spray-drying a slurry, and optionally postdosing (dry-mixing) further ingredients. “Concentrated” or “compact” powders may be prepared by mixing and granulating processes, for example, using a high-speed mixer/granulator, or other non-tower processes.
- Tablets may be prepared by compacting powders, especially “concentrated” powders.
- liquid detergent compositions which may be prepared by admixing the essential and optional ingredients in any desired order to provide compositions containing the ingredients in the requisite concentrations.
- the polymers may be incorporated at any suitable stage in the manufacture of the compositions of the invention.
- polymer in powder or solution preferably aqueous form may be incorporated in the slurry.
- polymer powder or solution may be easily introduced into mixing and granulating apparatus, either alone or in admixture with other solid or liquid ingredients as appropriate.
- copolymers were prepared by free radical polymerisation. The preparation was adapted from the process described in U.S. Pat. No. 5,319,041 (Zhong et al).
- the polymers were prepared using a four-step procedure as described below.
- the relative weights of VP and V2EH required were calculated in function of the % of hydrophobic units needed in the final copolymer. For example, the total quantities required to make a 200 g batch of the polymer of Example 1 as follows:
- a first mixture was prepared to the following composition:
- the monomers were charged under a blanket of nitrogen in a 125 mL four-neck flask equipped with a compressed air stirrer, reflux condenser and thermometer. The components were stirred for about 10 minutes and heated to 85° C.
- Vazo* 67 89.6% of 0.3% of total weight of monomers (VP + V2EH) Luperox* 101 89.6% of 0.3% of total weight of monomers (VP + V2EH) Butanol 2 g was added over a period of 30 minutes.
- VP 60% of total weight of VP V2EH 75% of total weight of V2EH Butanol 100% of total weight of VP and V2EH of third mixture was then gradually added over a period of 40 minutes.
- VP 20% of total weight of VP Butanol 100% of weight of VP of fourth mixture was added over a period of 15 min.
- copolymers were characterised by means of proton NMR spectroscopy and gel permeation chromatography.
- This formulation has a pH of 7.0. In the doseage 1 g/L and 2 g/L it has a pH of 8.8.
- the polymers were tested for their ability to enhance the removal of oily and clay/sebum soil from white cotton fabric, using an apparatus for simulating a soiling and wash procedure on a small scale.
- the fabric was soiled, and subjected to a simulated main wash procedure using wash liquors with and without the polymer according to the invention.
- the wash apparatus used allows different liquids to be simultaneously contacted with different regions of a single sheet of fabric.
- the fabric sheet is clamped between an upper and lower block.
- the fabric sheet is sandwiched between two rubber seals.
- Both blocks and seals contain an 8 ⁇ 12 array of square cavities, which are aligned.
- the dry fabric was placed on top of a 96 well polypropylene microtitre plate.
- Oily soil (5 ⁇ L of dirty motor oil (15% weight in toluene)) was dispensed from a pipette, onto the centre of each of the 96 cells on the cloth.
- the stained fabrics were allowed to dry at room temperature for 24 hours.
- test fabric was then clamped in the washing apparatus, 200 ⁇ L doses of each wash solution were placed in appropriate wells.
- the liquids flowed through the fabrics for 20 minutes, at 30° C. with a flow cycle time of 1.5 seconds. After 20 minutes, the free liquid in the cells was poured off.
- the blocks where then separated and the fabric removed, and thoroughly rinsed for 1 minute in 200 mL demineralised water. The fabrics were allowed to dry for 24 hours. Reflectance ( ⁇ E or ⁇ R) was then measured.
- the experiments were carried out at product doses of 0.1, 0.5 and 1.5 g/L, in water of 3° and 12° FH, the hardness being made up of three parts calcium to 1 part magnesium.
- the polymers were dosed separately at levels of 0.05, 0.1 and 0.5 g/l, and there was also a polymer-free control for each set of conditions.
- the following table shows the results for all four polymers on oily soil (dirty motor oil) averaged over all product levels (0.1, 0.5 and 1.5 g/l), polymer levels (0.05, 0.1 and 0.5 g/l), and water hardnesses (3 and 12° FH).
- results are expressed as reflectance increases ( ⁇ R) compared with a control containing no polymer. All results represent a significant difference at 95%.
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- Oil, Petroleum & Natural Gas (AREA)
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Abstract
Description
Polymer trade | Alkyl | Comonomer | Mole ratio | Physical |
name | chain | (olefin) | VP:olefin | form |
Agrimer AL-10 | C4 | Butene | 90:10 | Water- |
Ganex P904LC | soluble | |||
Antaron P904 | powder | |||
Ganex V216 | C16 | Hexadecene | 20:80 | Water- |
Antaron V216 | insoluble | |||
wax | ||||
Ganex V516 | C16 | Hexadecene | 50:50 | Water- |
Antaron V516 | insoluble | |||
wax | ||||
R1—CO—O—CH═CH2 (I)
wherein R1 is a linear or branched alkyl group having from 4 to 16 carbon atoms.
wherein R2 is a linear alkyl group having from 2 to 8 carbon atoms and R3 is a methyl or ethyl group.
Weight % | Weight % | |
Example | vinyl pyrrolidone | vinyl 2-ethyl hexanoate |
1 | 99 | 1 |
2 | 98 | 2 |
3 | 96 | 4 |
4 | 92 | 8 |
Name | Chemical name | Supplier | Function |
VP | Vinylpyrrolidone | Aldrich | Monomer |
V2EH | Vinyl 2-ethylhexanoate | Aldrich | Monomer |
Vazo* 67 | 2,2-azobis(2- | Fluka | Initiator |
methylbutyronitrile) | |||
Luperox* 101 | 2.5-bis(tert-butylperoxy)- | Aldrich | Initiator |
2.5-dimethylhexane | |||
Butanol | n-Butanol | Solvent | |
Experimental Procedure
Addition | VP | VAZO*67 | Luperox*101 | ||
Step/Reagent | (g) | V2EH (g) | (g) | (g) | Butanol (g) |
1 | 19.8 | 0.25 | 0.0312 | 0.0312 | 20.05 |
2 | — | — | 0.2688 | 0.2688 | 2 |
3 | 59.4 | 0.75 | — | — | 60.15 |
4 | 19.8 | — | — | — | 19.8 |
Total | 99 | 1 | 0.3 | 0.3 | 102 |
amounts (g) | |||||
Four-step Process
VP | 20% of total weight of monomers | ||
V2EH | 25% of total weight of monomers | ||
Vazo* 67 | 10.4% of 0.3% of total weight of monomers | ||
(VP + V2EH) | |||
Luperox* 101 | 10.4% of 0.3% of total weight of monomers | ||
(VP + V2EH) | |||
Butanol | Amount equal to total weight of VP + V2EH in | ||
this mixture | |||
Vazo* 67 | 89.6% of 0.3% of total weight of monomers | ||
(VP + V2EH) | |||
Luperox* 101 | 89.6% of 0.3% of total weight of monomers | ||
(VP + V2EH) | |||
Butanol | 2 g | ||
was added over a period of 30 minutes.
VP | 60% of total weight of VP | ||
V2EH | 75% of total weight of V2EH | ||
Butanol | 100% of total weight of VP and V2EH of third | ||
mixture | |||
was then gradually added over a period of 40 minutes.
VP | 20% of total weight of VP | ||
Butanol | 100% of weight of VP of fourth mixture | ||
was added over a period of 15 min.
Weight % | ||
Linear alkylbenzene sulphonate | 6.00 | ||
Sodium C12–C14 alcohol ethoxy sulphate 3EO | 10.50 | ||
Nonionic surfactant | 6.60 | ||
(C12–C14 alcohol ethoxylate, 9EO) | |||
Sodium citrate dihydrate | 3.20 | ||
Propylene glycol | 4.75 | ||
Sorbitol | 3.25 | ||
Sodium borate pentahydrate | 2.13 | ||
(Water to | 100.00) | ||
ΔR (460 nm) for polymer |
Product | Water | concentrations of |
dose | Hardness | 0 | ||
g/L | (° F.) | (control) | 0.05 | 0.5 |
0.1 | 3 | 4.01 | 4.13 | 4.37 |
0.5 | 3 | 3.99 | 4.36 | 4.72 |
1.5 | 3 | 4.60 | 5.44 | 5.72 |
0.1 | 12 | 3.50 | 4.00 | 3.84 |
0.5 | 12 | 3.67 | 4.01 | 3.99 |
1.5 | 12 | 3.94 | 4.36 | 4.80 |
Oily Soil (Dirty Motor Oil)
Product | Water | SRI for polymer concentrations of |
dose | hardnesS | 0 |
g/L | (° F.) | (control) | 0.05 | 0.1 | 0.5 | ||
0.1 | 3 | 71.31 | 71.82 | 71.78 | 71.92 | ||
0.5 | 3 | 72.20 | 72.58 | 72.21 | 72.36 | ||
1.5 | 3 | 72.99 | 74.01 | 73.17 | 73.59 | ||
0.1 | 12 | 71.16 | 71.49 | 71.13 | 71.88 | ||
0.5 | 12 | 71.94 | 72.66 | 72.14 | 72.15 | ||
1.5 | 12 | 73.10 | 74.49 | 73.59 | 74.19 | ||
Averaged Results for the Polymers of Examples 1–4
Polymer of Example | Mean ΔR | ||
1 | 0.49 | ||
2 | 0.36 | ||
3 | 0.46 | ||
4 | 0.51 | ||
Claims (13)
R1—CO—O—CH═CH2 (I)
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Application Number | Priority Date | Filing Date | Title |
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GB0229146.6 | 2002-12-13 | ||
GBGB0229146.6A GB0229146D0 (en) | 2002-12-13 | 2002-12-13 | Polymers and laundry detergent compositions containing them |
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US20040127390A1 US20040127390A1 (en) | 2004-07-01 |
US7160848B2 true US7160848B2 (en) | 2007-01-09 |
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US (1) | US7160848B2 (en) |
EP (1) | EP1570037B1 (en) |
CN (1) | CN1753983B (en) |
AR (1) | AR043709A1 (en) |
AT (1) | ATE494353T1 (en) |
AU (1) | AU2003292032A1 (en) |
BR (1) | BRPI0316725B1 (en) |
CA (1) | CA2503251C (en) |
CL (1) | CL2003002615A1 (en) |
DE (1) | DE60335654D1 (en) |
ES (1) | ES2359060T3 (en) |
GB (1) | GB0229146D0 (en) |
WO (1) | WO2004055147A1 (en) |
ZA (1) | ZA200504393B (en) |
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ES2751578T3 (en) | 2015-03-31 | 2020-04-01 | Toray Industries | Separation membrane module for medical use, medical device that uses it and blood purifier |
DE102015212963A1 (en) * | 2015-07-10 | 2017-01-12 | Henkel Ag & Co. Kgaa | The primary washing power improving polymeric agents |
US10953142B2 (en) * | 2016-08-05 | 2021-03-23 | Toray Industries, Inc. | Biological component adhesion-suppressing material |
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2002
- 2002-12-13 GB GBGB0229146.6A patent/GB0229146D0/en not_active Ceased
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2003
- 2003-11-12 CA CA2503251A patent/CA2503251C/en not_active Expired - Fee Related
- 2003-11-12 ES ES03767557T patent/ES2359060T3/en not_active Expired - Lifetime
- 2003-11-12 BR BRPI0316725A patent/BRPI0316725B1/en not_active IP Right Cessation
- 2003-11-12 CN CN200380105616.5A patent/CN1753983B/en not_active Expired - Fee Related
- 2003-11-12 EP EP03767557A patent/EP1570037B1/en not_active Expired - Lifetime
- 2003-11-12 WO PCT/EP2003/012823 patent/WO2004055147A1/en not_active Application Discontinuation
- 2003-11-12 DE DE60335654T patent/DE60335654D1/en not_active Expired - Lifetime
- 2003-11-12 AT AT03767557T patent/ATE494353T1/en not_active IP Right Cessation
- 2003-11-12 AU AU2003292032A patent/AU2003292032A1/en not_active Abandoned
- 2003-12-11 AR ARP030104567A patent/AR043709A1/en not_active Application Discontinuation
- 2003-12-11 US US10/734,756 patent/US7160848B2/en not_active Expired - Fee Related
- 2003-12-12 CL CL200302615A patent/CL2003002615A1/en unknown
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Also Published As
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EP1570037A1 (en) | 2005-09-07 |
BR0316725A (en) | 2005-10-18 |
CA2503251A1 (en) | 2004-07-01 |
CA2503251C (en) | 2012-03-27 |
CL2003002615A1 (en) | 2005-04-08 |
DE60335654D1 (en) | 2011-02-17 |
AU2003292032A1 (en) | 2004-07-09 |
ES2359060T3 (en) | 2011-05-18 |
US20040127390A1 (en) | 2004-07-01 |
EP1570037B1 (en) | 2011-01-05 |
BRPI0316725B1 (en) | 2015-10-27 |
CN1753983A (en) | 2006-03-29 |
ATE494353T1 (en) | 2011-01-15 |
GB0229146D0 (en) | 2003-01-15 |
WO2004055147A8 (en) | 2004-10-07 |
AR043709A1 (en) | 2005-08-10 |
ZA200504393B (en) | 2006-08-30 |
CN1753983B (en) | 2010-09-08 |
WO2004055147A1 (en) | 2004-07-01 |
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